The most abundant gas in the Earth's atmosphere is:

A. hydrogen

B. oxygen

C. nitrogen

D. carbon dioxide

A 125g metal block at a temperature of 93.2 degrees Celsius was immersed in 100g of water at 18.3 degrees Celsius. Given the specific heat of the metal (0.900 j/g degrees Celsius), fund the final temperature of the block and the water

A whale is 24 meters long. A rhinoceros is 400 cm long. Which is longer? By how much?

What are chemical changes that occur within the cell of an organism

The equation CaCO3 (s) Right arrow. CaO (s) + CO2 (g) shows the decomposition of calcium carbonate. Delta. H = 178.3 kJ/mol, and Delta. S = 160.5 J / The free energy change for the reaction is 130.5 kJ/mol.

What type of element is generally largest

48g LiOH dissolved in 1.0 L of solution. calculate the molarity

A (g) + 2B (g) → C (g) + D (g) If you initially start with 1.00 atm of both A and B and find that at equilibrium 0.211 atm of C is present, what is the value of Kp for the reaction at the temperature the reaction was run?

Erwin Schrödinger developed the quantum model of the atom. What scientific knowledge was necessary for Schrödinger's work?

What is not needed in the chemical formula for a covalent compound a-display of positive and negative charges b-specific atoms put together in the compound c-how many of each atom are combined d-abbreviation for an atoms included

Are there more bones in the arm than in the leg?